Let x, y and z be integers such that x2 y2 = z3 First note that x and y are not both odd, as otherwise we get a contradiction by reducing mod 8 Let d = gcd (x, y) and let a and b be integers such that d = ab3 and a is cubefree Then d2 = a2b6 divides z3 and hence a divides zTextbook solution for Calculus Early Transcendentals 8th Edition James Stewart Chapter 147 Problem 34E We have stepbystep solutions for your textbooks written by Bartleby experts!Equations Tiger shows you, step by step, how to Isolate x (Or y or z) in a formula (xy)2(xy)2=4xy and Solve Your Equation Tiger Algebra Solver
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U-v=(x-y)(x^2+4xy+y^2)